Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  BENCHMARK CAPITAL MANAGEMENT CO IV LLC
2. Date of Event Requiring Statement (Month/Day/Year)
10/03/2013
3. Issuer Name and Ticker or Trading Symbol
POTBELLY CORP [PBPB]
(Last)
(First)
(Middle)
2480 SAND HILL ROAD, SUITE 200
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MENLO PARK, CA 94025
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series B Preferred Stock 09/18/2002   (1) Common Stock 1,000,000 (2) $ (1) I See footnote (2)
Series C Preferred Stock 10/08/2003   (3) Common Stock 404,941 (2) $ (3) I See footnote (2)
Series D Preferred Stock 03/23/2005   (4) Common Stock 149,737 (2) $ (4) I See footnote (2)
Series E Preferred Stock 02/13/2006   (5) Common Stock 18,479 (2) $ (5) I See footnote (2)
Series F Preferred Stock 12/29/2008   (6) Common Stock 25,000 (2) $ (6) I See footnote (2)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
BENCHMARK CAPITAL MANAGEMENT CO IV LLC
2480 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    
BENCHMARK FOUNDERS FUND IV LP
2480 SAND HILL RD. #200
MENLO PARK, CA 94025
    X    
BENCHMARK FOUNDERS FUND IV A LP
2480 SAND HILL RD. #200
MENLO PARK, CA 94025
    X    
BENCHMARK FOUNDERS FUND IV-B LP
2480 SAND HILL RD. #200
MENLO PARK, CA 94025
    X    
BENCHMARK CAPITAL PARTNERS IV LP
2480 SAND HILL RD. #200
MENLO PARK, CA 94025
    X    
HARVEY KEVIN
2480 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    
SPURLOCK STEVEN M
3820 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    
GURLEY J WILLIAM
3820 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    
KAGLE ROBERT
3820 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    
DUNLEVIE BRUCE
2480 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
    X    

Signatures

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, the General Partner of Benchmark Capital Partners IV, L.P. 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV, L.P. 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV-A, L.P. 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV-B, L.P. 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, by power of attorney for Kevin R. Harvey 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, by power of attorney for Bruce W. Dunlevie 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, by power of attorney for J. William Gurley 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock, by power of attorney for Robert C. Kagle 10/03/2013
**Signature of Reporting Person Date

/s/Steven M. Spurlock 10/03/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The Series B Preferred Stock is convertible into Potbelly Corporation ("Potbelly") common stock on a 1-to-1 basis at the option of the holder and has no expiration date. The Series B Preferred Stock will automatically convert into common stock on a 1-to-1 basis upon the closing of Potbelly's initial public offering.
(2) Represents shares held by Benchmark Capital Partners IV, L.P., as nominee for Benchmark Capital Partners IV, L.P., Benchmark Founders' Fund IV, L.P., Benchmark Founders' Fund IV-A, L.P., Benchmark Founders' Fund IV-B, L.P. and related individuals (collectively, the "Benchmark Funds"). Benchmark Capital Management Co. IV, L.L.C. ("BCMC IV") is the general partner of Benchmark Capital Partners IV, L.P. and BCMC IV's managing members are Bruce W. Dunlevie, J. William Gurley, Kevin R. Harvey, Robert C. Kagle and Steven Spurlock. These individuals may be deemed to beneficially own the shares held by the Benchmark Funds. Each of these individuals disclaims beneficial ownership of such shares except to the extent of such individuals pecuniary interest therein.
(3) The Series C Preferred Stock is convertible into Potbelly common stock on a 1-to-1.0086 basis at the option of the holder and has no expiration date. The Series C Preferred Stock will automatically convert into common stock on a 1-to-1.0086 basis upon the closing of Potbelly's initial public offering.
(4) The Series D Preferred Stock is convertible into Potbelly common stock on a 1-to-1.0268 basis at the option of the holder and has no expiration date. The Series D Preferred Stock will automatically convert into common stock on a 1-to-1.0268 basis upon the closing of Potbelly's initial public offering.
(5) The Series E Preferred Stock is convertible into Potbelly common stock on a 1-to-1.0348 basis at the option of the holder and has no expiration date. The Series E Preferred Stock will automatically convert into common stock on a 1-to-1.0348 basis upon the closing of Potbelly's initial public offering.
(6) The Series F Preferred Stock is convertible into Potbelly common stock on a 1-to-1 basis at the option of the holder and has no expiration date. The Series F Preferred Stock will automatically convert into common stock on a 1-to-1 basis upon the closing of Potbelly's initial public offering.
 
Remarks:
Bruce W. Dunlevie, J. William Gurley, Kevin R. Harvey, Robert C. Kagle and Steven M. Spurlock are the managing members of Benchmark Capital Management Co IV, L.L.C., which serves as general partner to Benchmark Capital Partners IV, L.P., Benchmark Founders' Fund IV, Benchmark Founders Fund IV-A, L.P. and Benchmark Founders Fund IV-B, L.P. and may be deemed to share voting and investment power over the shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pencuniary interest in such securities) other than any securities being reported herein as being directly owned by such person or entity. The filing of this report is not an admission that any Reporting Person is the beneficial owners of these shares for purposes of Section 16 or for any other purpose.

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